watch out if you use a RBL
Posted Sep 19, 2003 1:40 UTC (Fri) by dlang
(✭ supporter ✭
Parent article: Whose Internet is it?
in at least some cases lookups to RBL DNS servers that used to respond with 'no such host' and therefor be considered legit mail are now returning the sitefinder IP address and therefor are being considered open relays.
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